Abstract
The effects of exogenous silicon on the growth of melon under salt stress were investigated.Seedlings of two melon cultivars(Xueli No.1and Longqinyinmi)with different salt tolerance were grown with 125mmol/L NaCl stress Exposure to 125mmol/L NaCl stress significantly inhibited melon seed germination.Compared with control,treatments with 0.5-1.0mmol/L exogenous silicon significantly increased seed germination rate,germination energy,germination index,alpha-amylase activity and water absorption and the treatment with 0.75 mmol/L exogenous silicon performed best.In addition,melon seedlings with 0.25-1.00mmol/L silicon exposed to 125 mmol/L NaCl had significantly increased plant height,leaf area,chlorophyll content,shoot dry weight and root dry weight,compared to controls.Treatment with 0.50mmol/L was optimal for Longqinyinmi,while 0.75mmol/L gave best results for Xueli No.1.These results indicate that exogenous silicon concentration from 0.50mmol/L to 0.75mmol/L can promote melon seed germination by enhancing alpha-amylase activity and water absorption,and promote seedling growth by increasing chlorophyll content and photosynthesis capacity under salt stress.When the silicon concentration was more than 1.25mmol/L,there was no effect on the seed germination and growth of seedlings under salt stress.
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Claims 5
Claim · model-written summary
NaCl significantly inhibited melon seed germination.
- Taxon
- melon
.jpg?width=60)
Cucumis meloe0 - Treatment
- 125mmol/L NaCl stresse0
- Outcome
- seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Exposure to 125mmol/L NaCl stress significantly inhibited melon seed germination”
Claim · model-written summary
Silicon increased germination rate, energy and index under salt stress.
- Treatment
- 0.5-1.0mmol/L exogenous silicone0
- Outcome
- seed germination rate,germination energy,germination indexe0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“treatments with 0.5-1.0mmol/L exogenous silicon significantly increased seed germination rate,germination energy,germination index”
Claim · model-written summary
Silicon increased alpha-amylase activity and water absorption.
- Treatment
- 0.5-1.0mmol/L exogenous silicone0
- Outcome
- alpha-amylase activity and water absorptione0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“treatments with 0.5-1.0mmol/L exogenous silicon significantly increased seed germination rate,germination energy,germination index,alpha-amylase activity and water absorption”
Claim · model-written summary
Silicon increased melon seedling height and leaf area under salt stress.
- Taxon
- melonCucumis meloe0
- Treatment
- 0.25-1.00mmol/L silicone0
- Outcome
- plant height,leaf areae0
- Direction
- increasede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melon seedlings with 0.25-1.00mmol/L silicon exposed to 125 mmol/L NaCl had significantly increased plant height,leaf area,chlorophyll content,shoot dry weight and root dry weight,compared to controls”
Claim · model-written summary
Silicon increased chlorophyll content and shoot and root dry weight.
- Taxon
- melonCucumis meloe0
- Treatment
- 0.25-1.00mmol/L silicone0
- Outcome
- chlorophyll content,shoot dry weight and root dry weighte0
- Direction
- increasede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melon seedlings with 0.25-1.00mmol/L silicon exposed to 125 mmol/L NaCl had significantly increased plant height,leaf area,chlorophyll content,shoot dry weight and root dry weight,compared to controls”
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